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Long-distance concrete culvert pipe curved jacking pipe installation method

An installation method and long-distance technology, applied in the direction of pipes/pipe joints/fittings, pipe laying and maintenance, mechanical equipment, etc., which can solve the problems of difficult control of jacking parameters, long jacking distance, and crushing of concrete at pipe joints. , to achieve the effect of improving project economic benefits, avoiding investment costs, and speeding up project progress

Inactive Publication Date: 2021-03-16
THE SIXTH CONSTR CO LTD OF CHINA NAT CHEM ENG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] (4) The construction period is long and the speed is slow, which is suitable for underground pipeline laying projects with a relatively generous construction period
[0011] If the jacking distance at one time is too long, the jacking parameters (earth pressure, jacking speed, excavation volume) are difficult to control, and it is easy to cause leakage in the pipe, resulting in abnormal ground settlement; at the curve, the force between the contact surfaces of the pipe joints is uneven, It is easy to crush the concrete at the pipe joints, or the pipe joints are unevenly adhered, resulting in disjoint; the axis of the curved pipe is difficult to control, frequent deviation correction, and has a great impact on ground subsidence; the pipeline is long, the pipe is damp, and the light is dim, and the measurement is prone to large Error; there are relatively many settings in the relay room, the booster oil pump in the relay room works in a humid and unventilated environment, the motor is prone to heat, and the main plug of the oil pump is easily damaged

Method used

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  • Long-distance concrete culvert pipe curved jacking pipe installation method
  • Long-distance concrete culvert pipe curved jacking pipe installation method
  • Long-distance concrete culvert pipe curved jacking pipe installation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] The present invention discloses as figure 1 A long-distance concrete culvert curve pipe jacking installation method shown includes the following steps:

[0044] S1 carries out the measurement construction of long-distance curved pipe jacking, and enters the construction preparation after measurement and stakeout;

[0045] S2 carries out the installation of the track, the top plate of the rear seat, the jack of the rear seat and the water stop device of the hole in sequence, and then installs the jacking equipment;

[0046] Power on S3 and run the pipe jacking machine to make it in place in the well of the pipe jacking machine. After the door panel is separated, the rear seat jack is jacked in;

[0047] S4 Make mud preparations, the pipe jacking machine goes out of the hole, drives the concrete culvert pipe jacking, and performs deviation measurement and jacking correction during the process;

[0048] S5 carries out splicing of pipe joints. After the completion, the in...

Embodiment 2

[0058] In this embodiment, through the research on the construction technology of long-distance concrete culvert curved pipe jacking, the long-distance curved pipe jacking construction across Cidu Avenue (211 Provincial Highway) is safely and smoothly in place.

[0059] This embodiment discloses the measurement construction of long-distance curved pipe jacking. The construction of the curved pipe jacking project is guaranteed by a reliable plane and elevation control system. The main task of the measurement work in the construction stage is to locate, stake out, and Installation, as well as jacking and pointing services for construction, so the measurement work should follow the principle of from the whole to the part during the construction. The measurement of curved pipe jacking construction is a meticulous work. It needs to have sufficient accuracy, otherwise it will bring hidden dangers to the quality of the entire project. Special attention should be paid to re-measurement...

Embodiment 3

[0078] In this embodiment, through the research on the construction technology of long-distance concrete culvert curved pipe jacking, the long-distance curved pipe jacking construction across Cidu Avenue (211 Provincial Highway) is safely and smoothly in place.

[0079] This embodiment discloses long-distance curved pipe jacking correction. The deviation of the pipeline from the axis is mainly caused by the imbalance of external forces acting on the tool pipe. The main reasons for the imbalance of external forces are:

[0080] (1) The propelling pipeline cannot be absolutely in a straight line;

[0081] (2) The curved surface of the pipe cannot be absolutely perpendicular to the axis of the pipe;

[0082] (3) The compressibility of the backing plate between the pipe joints is not completely consistent;

[0083] (4) The resultant force of the head-on resistance of the pipe jacking is not necessarily consistent with the reasonable coincidence of the pushing force of the rear en...

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Abstract

The invention relates to the technical field of jacking pipe engineering, in particular to a long-distance concrete culvert pipe curved jacking pipe installation method. The long-distance concrete culvert pipe curved jacking pipe installation method comprises the steps that measurement construction of a long-distance curved jacking pipe is conducted, and construction preparation is conducted aftermeasurement lofting; rail placement, rear seat top plate mounting, rear seat jack mounting and hole water stop device mounting are sequentially carried out, and then jacking equipment mounting is carried out; electrifying is carried out to operate a pipe jacking machine to enable the pipe jacking machine to be in place in a well, and jacking by a rear seat jack is carried out after a door plate is separated; mud discharging preparation is made, the pipe jacking machine goes out of a hole and drives a concrete culvert pipe to be jacked in, and deviation measurement and jacking deviation rectification are conducted in the process; and pipe joint splicing is conducted, joint inspection and pipe joint on-site acceptance are conducted after pipe joint splicing is completed, jacking is completed, and curved jacking pipe installation is completed. According to a long-distance curved jacking pipe technology, the project progress can be accelerated, the labor cost is saved, the project economic benefit is improved, and the cost of safe and civilized construction is reduced.

Description

technical field [0001] The invention relates to the technical field of pipe jacking engineering, in particular to a method for installing curved pipe jacking of long-distance concrete culvert pipes. Background technique [0002] With the development of the city, various infrastructures are updated and replaced. The original infrastructure cannot meet the modern progress. More and more cities have to add pipelines or cables under the roads or facilities that have been built. Due to various Factors affect the fact that there are no excavation conditions, and the pipe jacking can cross roads, railways, rivers, and even pass under buildings. Currently, pipe jacking construction is the safest and most effective construction method for environmental protection in pipeline construction. [0003] Curved pipe jacking is the cutting-edge technology of pipe jacking engineering. It is suitable for laying pipelines in the reconstruction of old cities, and is often used when crossing rive...

Claims

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Application Information

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IPC IPC(8): F16L1/036F16L1/06
CPCF16L1/036F16L1/06
Inventor 郭建军张延宗许江宽叶安龙张明仁闫彦飞
Owner THE SIXTH CONSTR CO LTD OF CHINA NAT CHEM ENG